Notice that the first time, tomcat has to compile each JSP and this may take several seconds.
AlarmGenerator |
AlarmGenerator is a servlet that generates alarms by
publishing messages on a topic. Once the JOnAS Server is running, this
servlet may be used to feed the Message Driven Bean listening
on the topic.
Click Here to Generate new Alarms
|
Session bean View |
A Session bean is used to provide a remote access to the Alarm Service. Each user
will create its own session that will be reached from JSP pages or servlets. |
Entity Bean AlarmRecord |
When a new alarm type is received, an entity bean is created. If the Alarm is already
known, its count is incremented only. |
Message Driven Bean |
JMS is used to access asynchronously to the service. A Message Driven Bean is used
to collect Alarm sent by AlarmGenerator. It will then inform the AlarmManager
that will process it. |